Patio chair



FIG. 1 is a front view of the patio chair showing my new design;

FIG. 2 is a back view of a patio chair;

FIG. 3 is a left side view of a patio chair;

FIG. 4 is a right side view of a patio chair;

FIG. 5 is a top perspective view of a patio chair; and,

FIG. 6 is a another top perspective view of a patio chair.

In the drawings, the broken lines depict a chair and form no part of the claimed design. 

The ornamental design for a patio chair, as shown and described. 